15550-2347 GHE 17 AB (HD 142361)

Coord 2000	15550-2347		Discov num	GHE  17		Comp	AB		Coord arcsec 2000	15 54 59.87 -23 47 18.2
Date first	1990		Date last	2002		Obs	11
Pa first	229		Pa last	236.4		P.A. Now (θ)	236.4°
Sep first	0.8		Sep last	0.705		Sep. Now (ρ)	0.705"
Mag pri	7.70		Mag sec	10.10		delta mag (ΔM)	2.4		Spectral class	G0 (yellow)
Pri motion ra	-030		Sec motion ra
Pri motion dec	-039		Sec motion dec
Notes	K (K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 142361	183920	15 54 60 -23 47 18	GHE 17 AB	2002	11	236	0.7	7.70	10.10	2.40		<===
Show		183920	15 54 60 -23 47 18	B 2796 AC	2015	6	162	10.9	7.67	14.00	6.33
Show		183920	15 54 60 -23 47 18	LAF 84 AD	2008	1	241	0.7	7.03	8.86	1.83

Quadruple system
4 estimated visually detectable stars in this system

Name	HD 142361		Constellation	Scorpius		SAO	183920		Tycho2	6779-01372-1
Gaia DR2	6237023074850117504		HD	142361		DM	CD-2312575